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 Indian J Med Microbiol  
 

Figure 1 (A, B): Pulmonary vein evaluation. Three-dimensional volume-rendered image (A) shows a common ostium for the left superior pulmonary vein (LSPV) and the left inferior pulmonary vein (LIPV). On the right, in addition to the normal ostia for the right superior pulmonary vein (RSPV) and the right inferior pulmonary vein (RIPV), there is an accessory ostium for the vein draining the superior segment of the right lower lobe (RSLL). Axial CT scan (B) in a patient with atrial fibrillation shows a hypodense lesion in the left atrial appendage (arrow), consistent with a thrombus. LA - left atrium, RA - right atrium, LAA - left atrial appendage, RV - right ventricle, AO - aorta

Figure 1 (A, B): Pulmonary vein evaluation. Three-dimensional volume-rendered image (A) shows a common ostium for the left superior pulmonary vein (LSPV) and the left inferior pulmonary vein (LIPV). On the right, in addition to the normal ostia for the right superior pulmonary vein (RSPV) and the right inferior pulmonary vein (RIPV), there is an accessory ostium for the vein draining the superior segment of the right lower lobe (RSLL). Axial CT scan (B) in a patient with atrial fibrillation shows a hypodense lesion in the left atrial appendage (arrow), consistent with a thrombus. LA - left atrium, RA - right atrium, LAA - left atrial appendage, RV - right ventricle, AO - aorta